For the average male golfer, a 7-wood generally hits a golf ball about 160 yards. For an average female golfer, a 7-wood causes a ball to travel about 110 yards.
Many amateur golfers opt for a 7-wood in place of a lower iron such as a 4-iron or a 5-iron because the 7-wood is generally easier to hit. It features a bit more loft than a lower iron, allowing a golfer to get the ball in the air a little easier. Of course, any talk of an average distance for a 7-wood needs to include discussion of the playing conditions as well as the skill level of the golfer.